中文摘要：

狭窄的脱衣被用来从 2.0 ×在雷纳兹数字在圆形的柱体上控制吝啬、波动的力量 10 ⁴ 到 1.0 × 10 ⁵ 。长带和柱体的斧子是平行的。控制参数是攻击和距离的角度从柱体描绘的长带宽度比率和长带位置。从柱体的双方流的旋涡能被压制的风隧道测试表演，和平均数拖，如果长带柱体下游地在一个有效地区被安装，柱体上的波动的电梯能被减少。单音方面的旋涡流的现象被发现。速度侧面在的导致长带的本地变化近柱体醒来被测量，并且在基础吸之间的关系和山峰价值尽最大努力，波动的电梯的光谱被学习。控制机理然后从不同观点被讨论。

英文摘要：

A narrow strip is used to control mean and fluctuating forces on a circular cylinder at Reynolds numbers from 2.0 ×10^4 to 1.0 ×^ 10^5. The axes of the strip and cylinder are parallel. The control parameters are strip width ratio and strip position characterized by angle of attack and distance from the cylinder. Wind tunnel tests show that the vortex shedding from both sides of the cylinder can be suppressed, and mean drag and fluctuating lift on the cylinder can be reduced if the strip is installed in an effective zone downstream of the cylinder. A phenomenon of mono-side vortex shedding is found. The strip-induced local changes of velocity profiles in the near wake of the cylinder are measured, and the relation between base suction and peak value in the power spectrum of fluctuating lift is studied. The control mechanism is then discussed from different points of view.